hidden highlights; peekaboo highlights; underlayer hair dyeing
A hair coloring technique where only the inner or underlayer of the hair is dyed, so the color peeks out subtly. A wasei-eigo term from 'inner color'.
wasei-eigo (Japanese-coined English), from inner color
When you get hidden highlights, they peek out stylishly when you push your hair back.
Her hidden highlights are pink and really cute.
Variant with a middle dot; less common in everyday use.
Wasei-eigo from English 'inner' and 'color'. The term is not used in English with this meaning.